Nina-Symone Smith is the baby of the family and LL Cool J and Simone I. Smith's fourth child. She was born in August 2000 and is following in her father's footsteps with a career as a musician.

The rapper’s 1991 hit “Mama Said Knock You Out” provides the soundtrack for Pfizer’s cancer-busting commercial.

Momma Said Knock You Out's impact is fueling a different kind of battle—one that is deeply personal for LL and his family ...